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78021 (2002 JY64)
Classification: Main-belt Asteroid          SPK-ID: 2078021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1060078933505151 4.0805e-08  
a 3.002388938055825 2.3266e-08 au
q 2.684112011713637 1.1742e-07 au
i 12.88697530055544 4.983e-06 deg
node 81.814152345032 2.4289e-05 deg
peri 191.529645396939 3.7616e-05 deg
M 216.9225826926519 2.9635e-05 deg
tp 2460151.709501226872
(2023-Jul-26.20950123)
0.00015792 TDB
period 1900.197987622685
5.20
2.2088e-05
6.047e-08
d
yr
n .1894539423496558 2.2022e-09 deg/d
Q 3.320665864398014 2.5733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      8138 days (22.28 yr)  
   first obs. used      1998-09-27  
   last obs. used      2021-01-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59897  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:34:41  

Additional Information
 Earth MOID = 1.6691 au 
 Jupiter MOID = 1.77576 au 
 T_jup = 3.206 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.56   n/a MPCxxxxx  
diameter diameter 4.830 km 1.346 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.144   0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78021 (2002 JY64)          Discovered 2002-May-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 JY64 = 2001 DR51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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